saint requier



(No Model.) 2 Sheets-Sheet 1.

H RSAINT REQUIER. APPARATUS FOR THE 1151111071017 0]? GRAIN.

No. 277,790. Patented May 15,1883.

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2 Sheets-Sheet 2.

(No Model.)

H. F. SAINT REQUIER.

v APPARATUS FOR THE REDUCTION OF GRAIN. No. 277,790.

Patented May 15, 18 83.

JVVENTORI AM 5% M N4 PETERS. Phalo-Lilhugnphcr. Washingmn. KICK UNITED STATES PATENT OFFICE.

HENRY F. SAINT RE UIER, on ASNIERES, FRANCE.

APPARATUS FOR THE REDUCTION OF GRAIN.

SPECIFICATION forming part of Letters Patent No. 277,790, dated May 15, 1883.

Application filed April 3, 1882. (No model.) Patented in France February 1, 1882, No. 147,163; in Belgium February 3,1882, No. 56,958, and in England February 3, 1882, No. 533.

To all whom it may concern:

Be it known that I, HENRY FERDINAND SAINT REQUIER, engineer, a citizen of the Republic of France, residing in Asnieres, (Seine,) France, have invented Improvements in Apparatus for the Reduction of Grain, of which the following is a specification.

My invention consists of certain improvements in reducing grain and in apparatus to clogging, and the blades are made of diffen therefor, as more fully described hereinafter. In the accompanying drawings, Figure 1 is a vertical section of my improved machine for reducing grain; Fig. 2, a sectional plan of a portion of one of the rotating tables or disks and knife-rings, only a quarter-segment being illustrated in detail; and Fig. 3 is an enlarged sectional plan view on the line 1 2, Fig. 1, of a portion of a table and knifering.

The base-frame N of the machinecarries an inner and outer casing, N and N on which is mounted the stationary cap K. The said baseframe also has at the center a step-bearing, H, in which is mounted the lower ends of the vertical shaft A, carrying a driving-pulley, B, and two horizontal disks or tables, I I. The upper end of the shaft A turns in a bearing, 1 carried by the cap K. Each disk I has formed on its upper surface a' series of radial grooves, Fig. 2, having parallel walls, and of a size proportioned to the size of the grain to be reduced. The upper surface of each disk is provided at its center with conical shcet-metal deflectors O, to direct the grain onto the grooved surfaces of the disks I. The cap K has an annular depression, is, so as to bring its under surface horizontally in close proximity to the grooyed surface of the upper disk I, and the fixed conical hopper L, which directs the grain onto the lower disk, has a horizontal under surface, Z, in close proximity to the grooved surface of the said lower disk I.

To the periphery of the depressed portion 7a of the cap K are secured the knife-rings J J, carryingaseries of fine steel blades,j, arranged in a series of step-like sets around the periphery of the disks, as shown in Figs. 2 and 3.

These blades present their vertical cuttingedges to the grain, and are arranged in planes at such an angle to the radial lines from the center of the shaft A as to be about on the lines of movement taken by the grain thrown off by the rapidly-revolving disk, when' the latter rotates in the direction of the arrow, Fig.

ent lengths for the same purpose. Similar knife-rings J, with their sets of blades, are carried by'the lower outer edge of the hopper L on a line with the periphery of the lower disk I, the blades in these lower rings being preferably arranged closer together than in the upper rings.

The upper part of the bearing E is conical, and over this is fitted a conical cover, G, leaving an annular channel, F, for the passage of the grain onto the upper disk I from the feedspout O. This feed-spout is provided with a tubular screw-gate or slide, D, to regulate theamount of grain supplied to the apparatus.

The lower part of the apparatus below the lower disk I is provided with a series of tapering discharge-spouts, M, which carry the reduced grain to the delivery-pipes P I.

At suitable points in the casing are air-in let openings Q, two being shown in the drawings, one in communication with the upper half and the other in communication with the lowerhalfoft heapparatus. Theinteriorofeach halfof the apparatus communicates through perforations or wire-gauze screens R in the inner casing, N with the space between the lata shearing action.

into the hopper L, and thence onto the-lower revolving disk I, by which it is again thrown off by the centrifugal force and violently projected against the cutting-edges of the finer set of blades, and the grain thus further reduced then passes out through the spouts M and pipes P. Meanwhile the currents of air drawn in through the openings Q, carry off the lighter particles to the screens R, which prevent the pieces of cut grain from escaping, but permit the passage of the dust and light bran, these latter being carried by the suction-fan through the outlet T to a chamber for their reception. I prefer to provide the-inner and outer casings, N W, with sliding doors S S, to allow of ready access to the knives and rotating disks.

I am aware that grain-reducing machines have heretofore been constructed with rotat ing grooved or notched disks, combined with knives around the periphery of the disk; but in such machines the knives have been arranged practically in contact with the periphery of the disk, so as to act, in conjunction with the edges of the notches, to cut the grains with In my machine the grain is thrown off from the disk, and is cut simply by being forcibly projected against the edges of the fine steel blades, which are set back from the revolving disk and are spaced from each other to permit the grain to pass between the blades.

I claim as my invention J 1. The combination of the revolving grooved disk of a grain-reducing machine, with kniferings around the periphery thereof, carrying a number of fine steel blades set back from the disk to permit the grain to be forcibly projected against the knives and cut by impact and leaving free spaces between the blades to permit the cut grain to pass between them, sub stantially as described.

2. The combination of the revolving grooved disk of'a grain-reducing machine, avith fine cutting-blades around the periphery thereof, arranged in step-like sets, each setat an angle in respect to a radial line from the center of the disk, substantially as set forth.

3. The combination of the revolving grooved disk of a grain-reducing machine, with a series of fine cutting-blades. around the periphery thereof insets, the blades of each set radiating outward, and having free spaces between them to facilitate the passage of the out grain between them and prevent clogging, substantially as specified.

4.. The combination of the casing and its cap K, carrying an upper bearing, E, with rotating shaft and step-bearing.

5. The combination of rotating shaft and upper bearing, E, having a conical top, with cap K, conical cover, and supply-spout, substantially as set forth.

6. The combination of the casing, the shaft, and a horizontal grooved disk, I, with a cap, having an annular depression, 70, in close proximity to the grooved surface of the disk, substantially as described.

7. The combination of the casing, the rotat- HENRY FERDINAND SAINT Witnesses:

ALFRED GoINY, ROBT. M. HOOPER,

U. S. Consulate-General. 

